Physical effects of climate change in OCNMS: Altered hydrologic patterns


Tohver, I.  2013. Chapter 2.8, pp.60-66. In Miller, I.M., Shishido, C., Antrim, L, and Bowlby, C.E. (eds.), Climate Change and the Olympic Coast National Marine Sanctuary: Interpreting Potential Futures. Marine Sanctuaries Conservation Series ONMS-13-01. U.S. Department of Commerce, National Oceanic and Atmospheric Administration, Office of National Marine Sanctuaries, Silver Spring, MD. 238 pp.


Future warming and increased precipitation intensity is projected to trigger greater flood magnitudes for the 100-year flood among some basins on the west side of the Olympic Peninsula, including the Sol Duc, the Hoh, the Queets and the Quinault Rivers. Late summer low flows are expected to decrease for basins feeding into OCNMS due to warmer temperatures and less snow accumulation at higher elevations. Water temperatures are expected to remain within favorable thresholds for salmon migration and rearing habitat for basins on the western coast of the Olympic Peninsula.